A study meant to discover whether variables covary relates to which type of…

Concept

Covariation concerns whether two measured variables change together. A research design can describe the direction and strength of their statistical association without manipulating either variable.

The defining feature is the examination of association among observed measurements; this does not, by itself, establish causation.

Application

The study asks whether variables covary. That purpose calls for measuring their association, which is the focus of correlational research.

Contrast

• Case study: examines one bounded case intensively in its real-life context and may combine several sources of evidence.

• Longitudinal research: observes the same units or phenomenon at multiple points in time to trace stability or change.

• Archival research: analyzes records or data that were created previously, with attention to their provenance and coverage.

Cross-check

The stem specifies an association between variables, not a bounded case, repeated time points, or reliance on pre-existing records. Therefore, the answer is correlational research.